Annotation of libwww/Library/src/HTAlert.c, revision 2.23
2.18 frystyk 1: /* HTAlert.c
2: ** DISPLAYING MESSAGES AND GETTING INPUT FOR LINEMODE BROWSER
3: **
2.23 ! frystyk 4: ** (c) COPYRIGHT MIT 1995.
2.18 frystyk 5: ** Please first read the full copyright statement in the file COPYRIGH.
1.1 timbl 6: **
7: ** REPLACE THIS MODULE with a GUI version in a GUI environment!
8: **
9: ** History:
10: ** Jun 92 Created May 1992 By C.T. Barker
11: ** Feb 93 Simplified, portablised TBL
2.8 luotonen 12: ** Sep 93 Corrected 3 bugs in HTConfirm() :-( AL
1.1 timbl 13: */
14:
2.20 frystyk 15: /* Library include files */
16: #include "tcp.h"
17: #include "HTUtils.h"
18: #include "HTString.h"
2.21 frystyk 19: #include "HTError.h" /* Implemented here */
20: #include "HTAlert.h" /* Implemented here */
1.1 timbl 21:
2.16 frystyk 22: PUBLIC BOOL HTInteractive=YES; /* Any prompts from the Library? */
1.1 timbl 23:
2.21 frystyk 24: /* ------------------------------------------------------------------------- */
25:
26: PUBLIC void HTProgress ARGS1(CONST char *, Msg)
27: {
28: fprintf(TDEST, " %s ...\n", Msg ? Msg : "UNKNWON");
29: }
30:
31:
1.1 timbl 32: PUBLIC void HTAlert ARGS1(CONST char *, Msg)
33: {
2.20 frystyk 34: #ifdef NeXTStep
2.6 timbl 35: NXRunAlertPanel(NULL, "%s", NULL, NULL, NULL, Msg);
36: #else
2.21 frystyk 37: fprintf(TDEST, "\nWARNING: %s\n", Msg ? Msg : "UNKNOWN");
2.6 timbl 38: #endif
1.1 timbl 39: }
40:
41: PUBLIC BOOL HTConfirm ARGS1(CONST char *, Msg)
42: {
2.8 luotonen 43: char Reply[4]; /* One more for terminating NULL -- AL */
1.1 timbl 44: char *URep;
45:
2.21 frystyk 46: fprintf(TDEST, "%s (y/n) ", Msg ? Msg : "UNKNOWN");
2.20 frystyk 47: #ifndef NO_STDIO
2.16 frystyk 48: if (!HTInteractive || !fgets(Reply, 4, stdin)) /* get reply, max 3 chars */
2.20 frystyk 49: #endif
2.14 frystyk 50: return NO;
1.1 timbl 51: URep=Reply;
2.8 luotonen 52: while (*URep) {
2.9 luotonen 53: if (*URep == '\n') {
2.10 luotonen 54: *URep = (char)0; /* Overwrite newline */
2.9 luotonen 55: break;
56: }
2.8 luotonen 57: *URep=TOUPPER(*URep);
58: URep++; /* This was previously embedded in the TOUPPER */
59: /* call an it became evaluated twice because */
60: /* TOUPPER is a macro -- AL */
61: }
62:
1.1 timbl 63: if ((strcmp(Reply,"YES")==0) || (strcmp(Reply,"Y")==0))
64: return(YES);
65: else
66: return(NO);
67: }
68:
2.20 frystyk 69: /* Prompt for answer and get text back. Reply text is either NULL on
70: ** error or a dynamic string which the caller must free.
1.1 timbl 71: */
72: PUBLIC char * HTPrompt ARGS2(CONST char *, Msg, CONST char *, deflt)
73: {
2.20 frystyk 74: char buffer[200];
75: char *reply = NULL;
2.21 frystyk 76: fprintf(TDEST, "%s", Msg ? Msg : "UNKNOWN");
2.20 frystyk 77: if (deflt)
78: fprintf(TDEST, " (RETURN for [%s]) ", deflt);
79:
80: if (HTInteractive) {
81: #ifndef NO_STDIO
82: if (!fgets(buffer, 200, stdin))
83: return NULL; /* NULL string on error, Henrik */
84: buffer[strlen(buffer)-1] = '\0'; /* Overwrite newline */
85: StrAllocCopy(reply, *buffer ? buffer : deflt);
86: #endif
87: }
88: return reply;
1.1 timbl 89: }
2.8 luotonen 90:
91:
2.20 frystyk 92: /* Prompt for password without echoing the reply. Reply text is
93: ** either NULL on error or a dynamic string which the caller must free.
2.8 luotonen 94: */
95: PUBLIC char * HTPromptPassword ARGS1(CONST char *, Msg)
96: {
2.20 frystyk 97: char *reply = NULL;
98: if (HTInteractive) {
99: #ifndef NO_PASSWD
100: char *pw = (char *) getpass(Msg ? Msg : "Password: ");
101: if (pw)
102: StrAllocCopy(reply, pw);
2.19 roeber 103: #endif
2.20 frystyk 104: }
105: return reply;
2.11 luotonen 106: }
107:
108:
109: /* Prompt both username and password HTPromptUsernameAndPassword()
110: ** ---------------------------------
111: ** On entry,
112: ** Msg is the prompting message.
113: ** *username and
114: ** *password are char pointers; they are changed
115: ** to point to result strings.
116: **
117: ** If *username is not NULL, it is taken
118: ** to point to a default value.
119: ** Initial value of *password is
120: ** completely discarded.
121: **
122: ** On exit,
123: ** *username and *password point to newly allocated
124: ** strings -- original strings pointed to by them
125: ** are NOT freed.
126: **
127: */
128: PUBLIC void HTPromptUsernameAndPassword ARGS3(CONST char *, Msg,
129: char **, username,
130: char **, password)
131: {
2.21 frystyk 132: fprintf(TDEST, "%s\n", Msg ? Msg : "UNKNOWN");
2.11 luotonen 133: *username = HTPrompt("Username: ", *username);
134: *password = HTPromptPassword("Password: ");
2.8 luotonen 135: }
136:
2.21 frystyk 137:
138: /* HTErrorMsg
139: **
140: ** Default function that creates an error message using HTAlert() to
141: ** put out the contents of the error_stack messages. Furthermore, the
142: ** error_info structure contains a name of a help file that might be put
143: ** up as a link. This file can then be multi-linguistic.
144: **
145: ** This function might be overwritten by a smart server or client.
146: */
147: PUBLIC void HTErrorMsg ARGS1(HTRequest *, request)
148: {
149: HTList *cur = request->error_stack;
150: BOOL highest = YES;
151: HTChunk *chunk;
152: HTErrorInfo *pres;
153: if (!request) {
154: if (TRACE) fprintf(TDEST, "HTErrorMsg.. Bad argument!\n");
155: return;
156: }
157:
158: /* This check is only necessary if the error message is put down the
159: stream, because we have to know if a stream has been put up and/or
160: taken down again. Here it is only put as an example */
161: #if 0
162: if (request->error_block) {
163: if (TRACE) fprintf(TDEST, "HTErrorMsg.. No messages are printed as no stream is available.\n");
164: return;
165: }
166: #endif
167:
168: /* Output messages */
169: chunk = HTChunkCreate(128);
170: while ((pres = (HTErrorInfo *) HTList_nextObject(cur))) {
171:
172: /* Check if we are going to show the message */
173: if ((!pres->ignore || HTErrorShowMask & HT_ERR_SHOW_IGNORE) &&
174: (HTErrorShowMask & pres->severity)) {
175:
176: /* Output code number */
177: if (highest) { /* If first time through */
178: if (TRACE)
179: fprintf(TDEST,
180: "HTError..... Generating message.\n");
181:
182: /* Output title */
183: if (pres->severity == ERR_WARN)
184: HTChunkPuts(chunk, "Warning ");
185: else if (pres->severity == ERR_NON_FATAL)
186: HTChunkPuts(chunk, "Non Fatal Error ");
187: else if (pres->severity == ERR_FATAL)
188: HTChunkPuts(chunk, "Fatal Error ");
189: else if (pres->severity == ERR_INFO)
190: HTChunkPuts(chunk, "Information ");
191: else {
192: if (TRACE)
193: fprintf(TDEST, "HTError..... Unknown Classification of Error (%d)...\n", pres->severity);
194: HTChunkFree(chunk);
195: return;
196: }
197:
198: /* Only output error code if it is a real HTTP code */
199: if (pres->element < HTERR_HTTP_CODES_END) {
200: char codestr[10];
201: sprintf(codestr, "%d ", error_info[pres->element].code);
202: HTChunkPuts(chunk, codestr);
203: }
204: highest = NO;
205: } else
206: HTChunkPuts(chunk, "\nReason: ");
207:
208: /* Output error message */
209: if (pres->element != HTERR_SYSTEM) {
210: HTChunkPuts(chunk, error_info[pres->element].msg);
211: HTChunkPutc(chunk, ' ');
212: }
213:
214: /* Output parameters */
215: if (pres->par && HTErrorShowMask & HT_ERR_SHOW_PARS) {
216: unsigned int cnt;
217: char ch;
2.22 frystyk 218: HTChunkPutc(chunk, '(');
2.21 frystyk 219: for (cnt=0; cnt<pres->par_length; cnt++) {
220: ch = *((char *)(pres->par)+cnt);
221: if (ch < 0x20 || ch >= 0x7F)
222: HTChunkPutc(chunk, '#'); /* Can't print real content */
223: else
224: HTChunkPutc(chunk, ch);
225: }
2.22 frystyk 226: HTChunkPutc(chunk, ')');
2.21 frystyk 227: }
228:
229: /* Output location */
230: if (pres->where && HTErrorShowMask & HT_ERR_SHOW_LOCATION) {
231: HTChunkPuts(chunk, "This occured in ");
232: HTChunkPuts(chunk, pres->where);
233: HTChunkPutc(chunk, '\n');
234: }
235:
236: /* We don't want the message more than once */
237: HTErrorIgnore(request, pres->handle);
238:
239: /* If we only are going to show the higest entry */
240: if (HTErrorShowMask & HT_ERR_SHOW_FIRST)
241: break;
242: }
243: }
244: HTChunkPutc(chunk, '\n');
245: HTChunkTerminate(chunk);
246: if (chunk->size > 2)
247: HTAlert(chunk->data);
248: HTChunkFree(chunk);
249: return;
250: }
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